From "Lingua ambigua (Ajami language)" to the "Persian Language" is a combination of two previous books (both books in Persian language) by the author. The first one, a book by the same name, is a comparative anatomy of the "Ajami or Farsi language" and the Persian Language. In 25 chapters this book looks into the modern Farsi (Ajami) language, its shortcomings and misuse and helps the reader to an understanding of the true Persian language. The second book named "Parvizan e Parsi" is a dictionary of about 7300 Ajami (modern Farsi) words, numerous examples, translated phrases and sentences and their Persian equivalents. Because of the site's technical issues the back cover of the book is shown here instead of the front cover.